TY  - JOUR
PY  - 2009//
TI  - The use of a hazard-based duration model for imputation of missing personal income data
JO  - Transportation
A1  - Tong, C.
A1  - Lee, Joyoung
SP  - 565
EP  - 579
VL  - 36
IS  - 5
N2  - This paper suggests using a proportional hazard model to predict personal income, for the purpose of imputing missing income data in household travel surveys. The model has a hazard function that comprises two multiplicative components: (1) a non-parametric baseline hazard function that is dependent only on the income level and (2) a function that is dependent only on the other personal attributes of the survey respondents (excluding income). To estimate and validate the model, data is drawn from a travel characteristics survey conducted in Hong Kong in year 2001. The model is found to have a much higher accuracy when compared with a conventional ordered probit model based on the assumption that the logarithm of income is normally distributed.<p />
LA  - 
SN  - 0049-4488
UR  - http://dx.doi.org/10.1007/s11116-009-9213-0
ID  - ref1
ER  -